Hi
I've just noticed that setting an array readonly doesn't really make
it readonly.
I have a RAID1 array and LVM on top of it.
When I run
/sbin/mdadm --misc --readonly /dev/md0
/proc/mdstat shows:
Personalities : [raid1]
md0 : active (read-only) raid1 sda[0] sdb[1]
160436096 blocks [2/2] [UU]
However, it doesn't prevent me from activating volume groups, mounting
filesystems and write files onto it.
Is it a bug, feature or my misunderstanding of the meaning of readonly flag?
I use RedHat AS 4 (U1) on a dual core Opteron machine.
Kernel 2.6.9-11.ELsmp as delivered with RH.
mdadm - v1.12.0 - 14 June 2005
Thanks for your time.
Regards,
Chris
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